package com.example.sxt_practise.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * @author 高枫
 */
@Target(value = ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
public @interface MyField {
    String columnName() ;
    String fieldType() ;
    int len() ;
}
